2.2.270 Problems 26901 to 27000

Table 2.557: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

26901

\begin{align*} y^{\prime }+y x&=x y^{2} \\ \end{align*}

[_separable]

3.267

26902

\begin{align*} y^{\prime }&=\frac {x}{y}+\frac {y}{x} \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, _Bernoulli]

6.744

26903

\begin{align*} y^{\prime }&=\frac {y}{x +y} \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

10.622

26904

\begin{align*} y^{\prime }&=\frac {y^{2}}{2 x}-\frac {y}{x}-\frac {4}{x} \\ \end{align*}

[_separable]

5.398

26905

\begin{align*} \left (x -2 y\right ) y^{\prime }&=2 x -y \\ \end{align*}

[[_homogeneous, ‘class A‘], _exact, _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

19.646

26906

\begin{align*} x y^{\prime }&=x \cos \left (\frac {y}{x}\right )+y \\ \end{align*}

[[_homogeneous, ‘class A‘], _dAlembert]

6.464

26907

\begin{align*} y^{\prime }+\frac {y}{x}&=\frac {1}{x^{4} y^{{3}/{4}}} \\ \end{align*}

[[_homogeneous, ‘class G‘], _rational, _Bernoulli]

7.013

26908

\begin{align*} x^{2} y^{\prime }&=x^{2}+y^{2} \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, _Riccati]

4.668

26909

\begin{align*} y^{\prime }&=-\frac {y^{2}}{x}+\frac {2 y}{x} \\ \end{align*}

[_separable]

4.374

26910

\begin{align*} x^{3} y^{\prime }&=x^{2} y-y^{3} \\ \end{align*}

[[_homogeneous, ‘class A‘], _rational, _Bernoulli]

269.159

26911

\begin{align*} y^{\prime }&=-y^{2} {\mathrm e}^{-x}+y+{\mathrm e}^{x} \\ \end{align*}

[[_1st_order, _with_linear_symmetries], _Riccati]

2.398

26912

\begin{align*} y^{\prime }+\frac {2 y}{x}&=\frac {3 y^{2}}{x} \\ \end{align*}

[_separable]

4.358

26913

\begin{align*} y^{\prime }&=\frac {-3+y}{x +y-1} \\ \end{align*}

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

11.090

26914

\begin{align*} y^{\prime }&=\frac {3 x -y-9}{x +y+1} \\ \end{align*}

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

19.551

26915

\begin{align*} y^{\prime }&=\frac {2 y+x +7}{-2 x +y-9} \\ \end{align*}

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

17.556

26916

\begin{align*} y^{\prime }&=\frac {2 x -5 y-9}{-4 x +y+9} \\ \end{align*}

[[_homogeneous, ‘class C‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

69.109

26917

\begin{align*} y^{\prime }&=\sin \left (y x \right ) \\ y \left (\frac {\pi }{2}\right ) &= 1 \\ \end{align*}

[‘y=_G(x,y’)‘]

1.308

26918

\begin{align*} y^{\prime }&=\ln \left (x -y\right ) \\ y \left (3\right ) &= \pi \\ \end{align*}

[[_homogeneous, ‘class C‘], _dAlembert]

1.758

26919

\begin{align*} y^{\prime }&=x^{2}-y^{2}+\frac {8 x}{y} \\ y \left (3\right ) &= -1 \\ \end{align*}

[_rational, [_Abel, ‘2nd type‘, ‘class C‘]]

8.492

26920

\begin{align*} y^{\prime }&=\cos \left ({\mathrm e}^{y x}\right ) \\ y \left (0\right ) &= -4 \\ \end{align*}

[‘y=_G(x,y’)‘]

2.077

26921

\begin{align*} y^{\prime }&=2-y \\ y \left (0\right ) &= 1 \\ \end{align*}

[_quadrature]

1.227

26922

\begin{align*} y^{\prime }&=4+y \\ y \left (0\right ) &= 3 \\ \end{align*}

[_quadrature]

1.226

26923

\begin{align*} y^{\prime }&=2 x^{2} \\ y \left (1\right ) &= 3 \\ \end{align*}

[_quadrature]

0.904

26924

\begin{align*} y^{\prime }&=\cos \left (x \right ) \\ y \left (\pi \right ) &= 1 \\ \end{align*}

[_quadrature]

0.503

26925

\begin{align*} y^{\prime \prime }+36 y&=0 \\ y \left (0\right ) &= -5 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.582

26926

\begin{align*} y^{\prime \prime }-16 y&=0 \\ y \left (0\right ) &= 12 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

[[_2nd_order, _missing_x]]

2.003

26927

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=0 \\ y \left (0\right ) &= -3 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.412

26928

\begin{align*} y^{\prime \prime }-6 y^{\prime }+13 y&=0 \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.500

26929

\begin{align*} y^{\prime \prime }-2 y^{\prime }+2 y&=0 \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.443

26930

\begin{align*} y^{\prime \prime }+36 y&=x -1 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.428

26931

\begin{align*} y^{\prime \prime }-16 y&=4 x^{2} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.417

26932

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=15 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.413

26933

\begin{align*} y^{\prime \prime }-6 y^{\prime }+13 y&=-{\mathrm e}^{x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.442

26934

\begin{align*} y^{\prime \prime }-2 y^{\prime }+2 y&=-5 x^{2} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.450

26935

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.276

26936

\begin{align*} y^{\prime \prime }-2 y^{\prime }+10 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.341

26937

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.355

26938

\begin{align*} y^{\prime \prime }-3 y^{\prime }&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.918

26939

\begin{align*} y^{\prime \prime }+10 y^{\prime }+26 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.320

26940

\begin{align*} y^{\prime \prime }+6 y^{\prime }-40 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.309

26941

\begin{align*} y^{\prime \prime }+3 y^{\prime }+18 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.394

26942

\begin{align*} y^{\prime \prime }+16 y^{\prime }+64 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.353

26943

\begin{align*} y^{\prime \prime }-14 y^{\prime }+49 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.340

26944

\begin{align*} y^{\prime \prime }-6 y^{\prime }+7 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.324

26945

\begin{align*} y^{\prime \prime }+3 y^{\prime }&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 6 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.130

26946

\begin{align*} y^{\prime \prime }+2 y^{\prime }-3 y&=0 \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= -2 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.414

26947

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (1\right ) &= 0 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.490

26948

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.523

26949

\begin{align*} y^{\prime \prime }+y^{\prime }-12 y&=0 \\ y \left (2\right ) &= 2 \\ y^{\prime }\left (2\right ) &= -1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.431

26950

\begin{align*} y^{\prime \prime }-2 y^{\prime }-5 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.470

26951

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (1\right ) &= 12 \\ y^{\prime }\left (1\right ) &= -5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.496

26952

\begin{align*} y^{\prime \prime }-5 y^{\prime }+12 y&=0 \\ y \left (2\right ) &= 0 \\ y^{\prime }\left (2\right ) &= -4 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.614

26953

\begin{align*} y^{\prime \prime }-y^{\prime }+4 y&=0 \\ y \left (-2\right ) &= 1 \\ y^{\prime }\left (-2\right ) &= 3 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.649

26954

\begin{align*} y^{\prime \prime }+y^{\prime }-y&=0 \\ y \left (-4\right ) &= 7 \\ y^{\prime }\left (-4\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.497

26955

\begin{align*} y^{\prime \prime }-2 \alpha y^{\prime }+\alpha ^{2} y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.331

26956

\begin{align*} y^{\prime \prime }-2 \alpha y^{\prime }+\left (\alpha ^{2}-\epsilon ^{2}\right ) y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.345

26957

\begin{align*} y^{\prime \prime }-2 \alpha y^{\prime }+\alpha ^{2} y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.348

26958

\begin{align*} y^{\prime \prime }-2 \alpha y^{\prime }+\alpha ^{2} y&=0 \\ y \left (0\right ) &= c \\ y^{\prime }\left (0\right ) &= d \\ \end{align*}

[[_2nd_order, _missing_x]]

0.408

26959

\begin{align*} y^{\prime \prime }-2 \alpha y^{\prime }+\left (\alpha ^{2}-\epsilon ^{2}\right ) y&=0 \\ y \left (0\right ) &= c \\ y^{\prime }\left (0\right ) &= d \\ \end{align*}

[[_2nd_order, _missing_x]]

0.441

26960

\begin{align*} y^{\prime \prime }+y&=\tan \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.599

26961

\begin{align*} y^{\prime \prime }-4 y^{\prime }+3 y&=2 \cos \left (x +3\right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.498

26962

\begin{align*} y^{\prime \prime }+9 y&=12 \sec \left (3 x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.829

26963

\begin{align*} y^{\prime \prime }-2 y^{\prime }-3 y&=2 \sin \left (x \right )^{2} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.541

26964

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=\cos \left ({\mathrm e}^{-x}\right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.638

26965

\begin{align*} 6 y-5 y^{\prime }+y^{\prime \prime }&=8 \sin \left (4 x \right )^{2} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.591

26966

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=2 x^{2}+5 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.437

26967

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=8 \,{\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.450

26968

\begin{align*} y^{\prime \prime }-2 y^{\prime }+10 y&=20 x^{2}+2 x -8 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.470

26969

\begin{align*} y^{\prime \prime }-4 y^{\prime }+5 y&=21 \,{\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.477

26970

\begin{align*} y^{\prime \prime }-6 y^{\prime }+8 y&=3 \,{\mathrm e}^{x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.439

26971

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=9 \cos \left (3 x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.594

26972

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=10 \sin \left (x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.437

26973

\begin{align*} y^{\prime \prime }-4 y^{\prime }&=8 x^{2}+2 \,{\mathrm e}^{3 x} \\ \end{align*}

[[_2nd_order, _missing_y]]

1.133

26974

\begin{align*} y^{\prime \prime }-4 y^{\prime }+13 y&=3 \,{\mathrm e}^{2 x}-5 \,{\mathrm e}^{3 x} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.552

26975

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=3 x +25 \sin \left (3 x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.723

26976

\begin{align*} y^{\prime \prime }-4 y&=-7 \,{\mathrm e}^{2 x}+x \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.760

26977

\begin{align*} y^{\prime \prime }+4 y^{\prime }&=8+34 \cos \left (x \right ) \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

[[_2nd_order, _missing_y]]

1.529

26978

\begin{align*} y^{\prime \prime }+8 y^{\prime }+12 y&={\mathrm e}^{-x}+7 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.598

26979

\begin{align*} y^{\prime \prime }-3 y^{\prime }&=2 \,{\mathrm e}^{2 x} \sin \left (x \right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

[[_2nd_order, _missing_y]]

1.543

26980

\begin{align*} y^{\prime \prime }-2 y^{\prime }-8 y&=10 \,{\mathrm e}^{-x}+8 \,{\mathrm e}^{2 x} \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.671

26981

\begin{align*} y^{\prime \prime }-y^{\prime }+y&=1 \\ y \left (1\right ) &= 4 \\ y^{\prime }\left (1\right ) &= -2 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.832

26982

\begin{align*} y^{\prime \prime }-y&=5 \sin \left (x \right )^{2} \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= -4 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.737

26983

\begin{align*} y^{\prime \prime }+y&=\tan \left (x \right ) \\ y \left (0\right ) &= 4 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.892

26984

\begin{align*} y^{\prime \prime }+4 y^{\prime }+2 y&=0 \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.459

26985

\begin{align*} y^{\prime \prime }+4 y^{\prime }+2 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.424

26986

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.522

26987

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.506

26988

\begin{align*} y^{\prime \prime }+2 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.523

26989

\begin{align*} y^{\prime \prime }+2 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.431

26990

\begin{align*} y^{\prime \prime }+6 y^{\prime }+2 y&=4 \cos \left (3 x \right ) \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.745

26991

\begin{align*} y^{\prime \prime }+6 y^{\prime }+2 y&=4 \cos \left (3 x \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 6 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.699

26992

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=4 \cos \left (3 t \right ) \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.872

26993

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=4 \cos \left (3 t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 6 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.816

26994

\begin{align*} y^{\prime \prime }+y^{\prime }+3 y&=4 \cos \left (3 t \right ) \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.777

26995

\begin{align*} y^{\prime \prime }+y^{\prime }+3 y&=4 \cos \left (3 t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 6 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.699

26996

\begin{align*} x^{2} y^{\prime \prime }+2 x y^{\prime }-6 y&=0 \\ \end{align*}

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

0.826

26997

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }+y&=0 \\ \end{align*}

[[_2nd_order, _exact, _linear, _homogeneous]]

1.317

26998

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+4 y&=0 \\ \end{align*}

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

25.447

26999

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-4 y&=0 \\ \end{align*}

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

25.270

27000

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-16 y&=0 \\ \end{align*}

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

25.358